[U-Boot] [PATCH v2] env: only build env_embedded and envcrc when needed

[Mike Frysinger <vapier@gentoo.org>]

On Wednesday 09 September 2009 09:33:20 Wolfgang Denk wrote:
> Mike Frysinger wrote:
> > The env code is protected by the ENV_IS_EMBEDDED define, so attempting to
> > compile the code when this isn't defined is pointless.  Now that the env
> > headers have unified around CONFIG_ENV_IS_EMBEDDED, convert the build
> > system to only build the env objects when this is enabled.  And now that
> > the env code is conditionally compiled, we can drop the source code
> > checks.
> >
> > For people who want to extract the environment manually, add a new option
> > that only enables the envcrc utility.
> 
> Add a new option...?
> 
> I guess this is CONFIG_ENV_IS_EMBEDDED_CUSTOM then?
> 
> Hm... but I see no users of this variable, nobody is setting it?

Blackfin has been using ENV_IS_EMBEDDED_CUSTOM.  i have a patch to update it 
to CONFIG_xxx, but was waiting for this to be accepted first.

> Also, I see no documentation for it?

guessing you want it added to the top level README ?
-mike
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